What means the efficiency of a programm

Question

What the eficiency of a programm refers to?
How can I transform a programm to be efficient?

For examples this code is efficient?

https://code.sololearn.com/cJrrTX6AB4Uw/?ref=app

Answer 1

I don't know what is you program about but I can help you with what is code efficiency programing:

Efficient programming is programming in a manner that, when the program is executed, uses a low amount of overall resources pertaining to computer hardware. A program is designed by a human being, and different human beings may use different algorithms, or sequences of codes, to perform particular tasks. Some algorithms are more hefty and resource-intensive while accomplishing the same task than another algorithm. Practicing to create a low file size and low resource algorithm results in an efficient program.